Methodologic problems in children's spirometry /
Palmer, Alan,1936-
Hamill, Peter V. V.,1926-
Drizd, Terence.
Hyattsville, Md. : U. S. Dept. of Health, Education, and Welfare, Public Health Service, National Center for Health Statistics,
1977.
Includes bibliographical references.
Spirometry.
Pediatric respiratory diseases